10 Most Intelligent Animals

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Pigs

Although at first glance this animal does not look particularly intelligent, pigs actually have good memory and show good results in tests of quick wits and observation. They are also easy to learn, well oriented in space and even able to understand the simple language of symbols.

The 7 Worst Epidemics in Human History

The new year 2020 began with the advent of a new virus in the Chinese city of Wuhan. To date, coronavirus has claimed about 100 lives and continues to test people for strength. The history of mankind has repeatedly known extremely dangerous viruses and epidemics, which claimed millions of lives, wreaking havoc on the trail of panic and chaos. But even the worst of all infections, people managed to win and live on ... exactly until the next outbreak of some mutated flu.